From 83e521c9332fb5fbd6c5eef7c97e34883a9e5c3e Mon Sep 17 00:00:00 2001
From: imgurbot12 <imgurbot12@gmail.com>
Date: Tue, 15 Jul 2025 22:23:12 -0700
Subject: [PATCH] fix: include content-length with bytes payload

---
 actix-http/CHANGES.md  | 2 ++
 actix-http/src/test.rs | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/actix-http/CHANGES.md b/actix-http/CHANGES.md
index dc0a02730..715156d5e 100644
--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Update `TestRequest::set_payload` to generate "Content-Length" header
+
 ## 3.11.0
 
 - Update `brotli` dependency to `8`.
diff --git a/actix-http/src/test.rs b/actix-http/src/test.rs
index dfa9a86c9..84a6d731b 100644
--- a/actix-http/src/test.rs
+++ b/actix-http/src/test.rs
@@ -11,7 +11,7 @@ use std::{
 
 use actix_codec::{AsyncRead, AsyncWrite, ReadBuf};
 use bytes::{Bytes, BytesMut};
-use http::{Method, Uri, Version};
+use http::{header, Method, Uri, Version};
 
 use crate::{
     header::{HeaderMap, TryIntoHeaderPair},
@@ -100,7 +100,9 @@ impl TestRequest {
     /// Set request payload.
     pub fn set_payload(&mut self, data: impl Into<Bytes>) -> &mut Self {
         let mut payload = crate::h1::Payload::empty();
-        payload.unread_data(data.into());
+        let bytes = data.into();
+        self.insert_header((header::CONTENT_LENGTH, bytes.len()));
+        payload.unread_data(bytes);
         parts(&mut self.0).payload = Some(payload.into());
         self
     }